铯引起青蛙有髓神经纤维的整流。

Cesium induced rectifications in frog myelinated fibres.

作者信息

Dubois J M, Bergman C

出版信息

Pflugers Arch. 1975 Apr 2;355(4):361-4. doi: 10.1007/BF00579857.

Abstract

Voltage clamp experiments done on nodes of Ranvier show that external application of Cesium blocks the inward but not the outward potassium currents. Internal application of Cs ions reduces the outward K-current and the inward K-current is not affected. These results support the hypotheses that K ions cross th- K-channel after dehydration at superficial sites where competition may occur with Cs-ions.

摘要

在郎飞结上进行的电压钳实验表明，外部施加铯会阻断内向钾电流，但不会阻断外向钾电流。内部施加铯离子会降低外向钾电流，而内向钾电流不受影响。这些结果支持了以下假设：钾离子在表面位点脱水后穿过钾通道，在这些位点可能会与铯离子发生竞争。